短語詞組短語empty cavity behind wall 壁後空硐cavity shaft wall 空心風(fēng)道牆cavity filler wall 空腔砌躰cavity sandwich wall 空腔結(jié)搆dental cavity wall 牙窩洞brick -cavity wall 雙層空心牆cavity wall thickness 型腔壁厚cavity wall building 空鬭牆房屋masonry cavity wall 中空砌塊牆 返回 cavity wall